Valve.



No. 845,540. PATENTED FEB. 26, 1907. R. T. FERGUSON, H. TURNER & 0. J. HALLER.

VALVE.

APPLIUATION FILED FEB. 28, 1906.

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UNITED STATES PATENT OFFICE;

ROBERT T. FERGUSON, OF ALLEGHENY, AND HARRY TURNER AND OLIVER J. HALLER, OF PITTSBURG, PENNSYLVANIA. I I

VALVE.

To all whomit may concern:

Be it known that we, ROBERT T. FERGU- SON, residing at Allegheny, and HARRY '1 UR- NER and OLIvERJ. HALLER", residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, citizens of the bnited States of America, have invented certain new and useful Improvements in Valves, of which the follow ing is a specification, reference being had therein to the accompanying drawing.

1 his invention relates to certain new and useful improvements in valves and cooks, and relates more particularly to a valve or cock having a tapering valve for controlling the passage through the valve body or casing.

The primary object of this invention is the provision of positiveand reliable means for effecting a perfect adjustment of the valve to insure a perfect operation of the same within the valve body or casing.

In the manufacture of valves and cocks considerable trouble is experienced in properly seating the valve, it bein impossible to determine accurately the positioning of the valve within the valvebody or casing to permit of the same being rotated and insuring a proper registration of the openings of a valvebody and the ports of the valve. In the majority of instances it is necessary that the valve be reground and tested a number of times before a perfectly fitting thereof with the seat in the valve body or casing is obtained.

()ur invention aims to obviate the above defects by providing means for accurately va vc body or casing, thus permitting of the valves beinlg accurately reseated when they have become worn and have been reground to be further used.

Another feature of our invention resides in providing an, adjustment mechanism for the valve which will be thoroughly housed or incased within the valve-body, thereby preventing the general operation of the valve or cook from interfering with the adjusting mechanism of the valve, also preventing said mechanism from being affected from surrounding existing conditions.

With the above and other objects in view the invention consists in the novelcOnstruction, combination, and arrangement of arts to be hereinafter more fully describe and claimed, and referring to the drawing ac- Specification of Letters Patent.

Application filed February 28. 1906. Serial No. 303134"?- I adjusting and positioning the valve within a Patented Feb. 26, 1907.

companying this application like" numerals of re erence designate corresponding parts throughout'the several views, in which- Figure 1 is a vertical sectional view of a valve or cook constructed in accordance with our invention. Fig. 2 is a cross-sectional view taken on the line y y of Fig. 1. Fig. 3 is a similar view taken on the line w as of Fig. 1..- Fig. 4 is a fragmentary vertical sectional View of a valve or cock, illustrating a slight modification.

In the accompanying drawing we have illustrated a conventional form of valve or cock consisting of a body portion 1, having diametrically opposed ports or openin s 2 2 formed therein. The'body of the va v e or cock is provided with a tapering seat 3 for a tapering. valve 4, which 1s orten termed a lu The valve is hollow and is provlde with two diametrically opposed slots or ports 5 5, adapted when the plu is disposed in one position to registerwith t e ports 2 2 of the valve-body. The valve is' provided with an upwardly-extending stem 6,

carrying a conventional form of screw-thread 7 and having its end squared or provided with faces 8 for the reception of an operating handle or wheel by which the valve is rotated within the valve-body 1.

One feature of our invention resides in providing the valve-body with an annular enlargement 9, having an annular plate-cavity 10 formed therein. The enlargement 9 is exteriorly screw-threaded, as at 11, .to receive a cap 12, said cap being formed with a central enlargement 14, through which the stem 6 extends. cap 12 is provided with a recess 15, while the upper portion of the enlargement 14 conforms to a stuffin -box 16, havinga detachable gland 17 sald stuffing-box being of a conventional form adapted to receive pack The underneath face of the a ing, which is retained therein by the gland 17.

in the cavity 10 of the enlargement '9ris mounted an annular adjusting or regulating plate 18, having a central enlargement in which is formed a vertically-disposed screwthreaded opening 19, in which the thread 7 of the stem 6 is adapted to engage. The periphery or edges of the plate 18 are scalloped or provided with a plurality of grooves 20, said grooves being equally spaced apart and extending from the top surface of said plate to the bottom surface thereof. The side 'bodyis determined by the projection 23in the recess 22 of the enlargement 9, said pro.

rotated .to partially unseat the valve and -6. For instance, when six threads are used walls of the plate-cavity 10 are provided with two diametrically 0 posed lugs 21., said lugs being substantia ly semicylindrical and adapted to fit Within the grooves of the adjusting or regulating plate.18. The annular enlargement surrounding the valve 4 is provided with a segment-shaped recess 22, said recess bordering upon a proximately one-quarter of the periphery o the valve 4. The upper edge of the valve is provided with a radiallydisposed projection 23, adapted to engagein the recess 22 and limit the movement of the valve 4 Within the valve-body.

In operation the stem 6 of the valve 4 is move the ports or slots of the valve in and out of alinement with the openings or ports of the valve-body. In rotating the stem 6, carryingthe valve 4, the open position of the valvelthat is, the-registration of the ports. 5 5 with the openings or ports 2 of the valvejection limiting the revoluble movement of the valve and only permitting it to rotate approximately a quarter of a revolution. Thev projection 23 also determines WhiBIl the. valve-body is closed, thus permitting the valve to be quickly opened and closed, the position of the same being determinz d by the andle'or wheel mounted uponthe upper end of the stem 6.

Our invention particularly resides in the adjusting or regulating plate 18, mounted within the plate-cavity 10. .It will be observed that by removing the cap 12 the valve, together with the plate 18, can be elevated and partially turned in order that it may be reseated to have the lugs 21 21 .engage in two other grooves 20. .As the plate 18 is provided with a plurality of equallyspaced grooves, a very minute adjustment may be had between said plate and the stem,

to an inch upon the stem 6 and twelve equally-spaced grooves are formed in the plate 18 approximately a seventy-second part of an inch adjustment can be obtained in the valve 4 by simply unseating the plate 18, rotating a twelfth of a revolution upon the stem, and reseating., This may also be accomplished by simply elevating the stem 6- and the plate 18 and turning them in unison until the next set of grooves 20 .is in position to receive the lugs 21 21 of the enlargement 9.

In Fig. 4 of the drawings we have illustrated a valve 4', havinga stem 6, said stem being plain or stripped of threads and the seating and unseating of the valve accomplished through the medium of cam-surfaces '77, formed upon the under face of a plate sire to be understood that we do not care to confine ourselves specifically to the means for seating and unseating the valve of a valvebody or cock, our invention residing entirely in'the construction of the plate 18 and its appurtenant parts.

From the foregoing description it will be observed by the construction of our improved valve or cook we are enabled to obtain an accurate and minuteadjustment of the valve 4 within the valvebody' at any desired time. Consequently the valve can be removed from the valve-body or cook and reground when it has become worn and properly reseated with the least expenditure of labor or time.

We do not care to confine ourselves to the number of threads used in connection with the stem 6, the number of grooves used in connection with the plate 18, or to the size or minor details of the valve or cook. Such other changes as are permissible by the appended claim may be resorted to without departing from the spirit and scope of the invention.

What weclaim, and desire to secure by Letters Patent, is-

vA valve including a body having a valveseat transversely of its passage-way and with converging walls and alateral enlargement whereby .an annularfshoulder is formed around the outer end of the valve-seat and with sto Jugs extending over said shoulder, a plate aving acentral threaded aperture seated upon said shoulder and with spaced peripheral recesses adapted for engagement consecutively with said stop-lugs, a tapering valve engaging said valve-seat and having a threaded stem engaging the threaded aperture of said plate, means for limiting the movement of said valve, and a cap engaging thelateral enlargement of the body and bearing upon said plate and maintaining the same in position.

In testimony whereof we affix our signatures in the presence of two witnesses.

ROBERT T. FERGUSON. HARRY TURNER. OLIVER J. HALLER. Witnesses:

A. M. WILSON, -C. LLos'rERMANN.

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